/Engine/Source/Runtime/Engine/Classes/Engine/StreamableManager.h
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FStreamableHandle](API\Runtime\Engine\Engine\FStreamableHandle) > RequestAsyncLoad ( const [FSoftObjectPath](API\Runtime\CoreUObject\UObject\FSoftObjectPath) & TargetToStream, [TFunction](API\Runtime\Core\GenericPlatform\TFunction)< void()> && Callback, TAsyncLoadPriority Priority, bool bManageActiveHandle, bool bStartStalled, [FString](API\Runtime\Core\Containers\FString) DebugName )